Our high-quality carbon steel rectangular tubes are manufactured from premium carbon steel, available in both seamless and welded construction types. These tubes feature precise right angles and excellent weldability, making them ideal for construction frameworks, machinery guards, and decorative applications. Custom sizes and a variety of surface treatments are also available to meet specific customer requirements.

We operate both advanced welded and seamless manufacturing processes, dedicated to providing global clients with a comprehensive selection of carbon steel rectangular tubes. This ensures every one of your projects receives the most suitable and cost-effective material solution.

Our Welded Rectangular Tube Production Line is renowned for its high efficiency, precision, and flexible customization capabilities. Starting from premium steel strip, we employ precise cold-forming and High-Frequency Welding (HFW) technology. Combined with online real-time monitoring and cutting-to-length, we ensure every tube features excellent weld quality, precise dimensional tolerances, and outstanding straightness. This automated line is the robust foundation that allows us to respond quickly to large-volume orders and reliably supply a wide range of specifications for applications from building structures to storage shelving.

Meanwhile, our Seamless Rectangular Tube Production Line represents superior structural integrity and strength. Manufactured from round steel billets through hot-rolling or cold-drawing processes, its inherent seamless advantage ensures unparalleled reliability and safety when bearing high pressure, impact, and fatigue loads. This product category is the ideal choice for demanding applications such as high-pressure hydraulic systems and load-bearing frames for heavy machinery.

Whether your priority is the cost-effectiveness and flexibility of welded tubes or the superior strength and safety of seamless tubes, we leverage our complete product range and technical expertise to be your trusted global partner.

In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.